Fuel-saving device



R. G. THOMPSON FUEL SAVING DEVICE Filed June 13 1923 gwuentoz 6R0: u w 1 Patented July 29, 1924.

UNID STATES ROBERT e. THOMPSON, or SEATTLE, wasnrneron.

FUEL-SAVING DEVICE.

Application filed June 13, 1923. Serial No. 645,172.

of Washington, has invented certain new and useful Improvements in Fuel-Saving Devices, of which the following is a specifi cation.

The invention relates to a fuel diffuser, designed for use in connection with the usual carbureter, and serving when in use to break up any sustained particles of fuel prior to the introduction of such fuel into the engine cylinder.

The diffuser comprises an independent unit adapted to be removably secured in and between separable sections of the manifoldor between the manifold and carbureter and made up of a skeleton-frame structure supporting a freely-rotatable breaker element, which element is operated by the passage of the fuel and imparts a whirling deflecting motion to the fuel stream, and cause such fuel particles, particularly those of globular sustained form, to be broken by contact with the walls of the manifold and the bars of the skeleton frame.

The invention is illustrated in the accompanying drawings, in which:

Fig. l is an elevation of an engine intake manifold, partly broken out to show the application of the improvement.

Fig. 2 is a'view in elevation, partly in section of the improved diffuser.

Fig. 3 is an end view of the same. The improved diffuser comprises a disclike central portion 1, from which extends frame bars 2, the bars 2 extending from the disc toward the incoming fuel and diverging from the disc. The ends of the bars 2; are bent laterally to form feet 3, which are secured between the flanges of connected parts of the manifold, or at the junction of the manifold and contiguous parts, such as the carburetor. These junctures usually include mating flanges at and 5 secured by bolts 6, with an intervening gasket 7, and the feet 3 are inserted at one side of the shown.

The disc 1 is provided with an axialgarranged post 8 extending toward the in coming fuel, and terminally provided with gasket, as

a rotating member 9, preferably in the form of a series of blades.

With the diffuser in place, the member 9 is readily rotated by the incoming fuel, and such fuel is iven a whirling motion, and caused to be directed with more or less force against the bars 2 and the wall of the inanifold. Thus any globular particles of the fuel will be broken to permit more perfect vaporization.

It. will be noted that the member 9 is supported beyond the junction of the manifold sect-ions in which it is secured in the direction of fuelfeed, so that if, through leakage of the joint, air is admitted, the member 9 will serve additionally to mix such air with the fuel.

It is desired that the diffuser be located as close to the engine proper as convenient, for thereby the braking effect and whirling action of the fuel is maintained until the fuel is actually in the cylinders, with consequent advantage.

Obviously, the member 9 is of materially less diameter-than that of the manifold in which it is mounted, though the relative diameters may be varied with different characters of fuel, as the larger the member 9, the greater its force in action.

I claim: A diffuser comprising a disc-like central portion, a plurality of diametrically opposed frame bars projecting forwardly therefrom, said frame bars being divergent and having lateral terminals, an axially arranged post secured to th disc and projecting in the direction of the frame bars, and a multiblade rotating member rotatably mounted on the inner end of said post, the diameter of said member exceeding that of the disc.

in testimony whereof I afiix my signature.

ROBERT THOMPSQN. 

